Advanced SQL - Window Functions Explained | Ranking & Trend Analysis (Real Examples)

In this video, we will learn SQL Window Functions with real-world practical examples.
We cover:
• ROW_NUMBER()
• RANK()
• DENSE_RANK()
• LAG()
• LEAD()

Instead of just theory, we use two powerful real-life scenarios:

1️⃣ Government Exam Result Ranking
– Overall rank
– Category-wise rank
– Understanding rank skipping vs continuous ranking

2️⃣ Gold Price Trend Analysis
– Comparing current price with previous day
– Using LAG to analyze daily change
– Using LEAD to compare next day price
– Practical financial data analysis

You will clearly understand:

✔ Difference between ROW_NUMBER, RANK, and DENSE_RANK
✔ When to use RANK vs DENSE_RANK
✔ Where LAG and LEAD are used in real projects
✔ How PARTITION BY works
✔ How window functions execute in SQL

This video is perfect for:
SQL Developers
Data Analysts
Backend Developers
Interview Preparation
Working Professionals

If you want to master SQL for real-world development, this is a must-watch session.

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Видео Advanced SQL - Window Functions Explained | Ranking & Trend Analysis (Real Examples) канала LearnCodingWithVinay-SQLForDevelopers